Creating your Purple Sweet Potato Cheesecake can be an enjoyable process if you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Crust: In a mixing bowl, combine the graham cracker crumbs and melted butter. Mix until well combined. Press the mixture into the bottom of a 9-inch springform pan to form a solid crust.
3. Bake the Crust: Bake the crust for about 8-10 minutes until slightly golden. Remove from the oven and let it cool.
4. Prepare the Filling: In a large bowl, beat the softened cream cheese and granulated sugar until smooth and creamy.
5. Add Sweet Potatoes: Mix in the cooked and mashed purple sweet potatoes until fully incorporated.
6. Mix in Eggs: Add the eggs one at a time, beating well after each addition. This will ensure a creamy texture without lumps.
7. Incorporate Other Ingredients: Stir in the vanilla extract, lemon juice, and sour cream until everything is smoothly combined.
8. Pour Filling into Crust: Pour the cheesecake filling into the prepared crust, smoothing it with a spatula.
9. Bake the Cheesecake: Bake in the preheated oven for about 50-60 minutes. The center may appear slightly jiggly, but it will firm up as it cools.
10. Cool Slowly: Once baked, turn off the oven and crack the door open, allowing the cheesecake to cool in the oven for about an hour to prevent cracking.
11. Refrigerate: After it has cooled, transfer it to the refrigerator for at least two hours, but overnight chilling is ideal for the best texture.
12. Serve: Once thoroughly chilled, carefully remove the cheesecake from the springform pan. Top with whipped cream and berries for a beautiful presentation, if desired.